SAF-C515-1R24M Siemens Semiconductor Group, SAF-C515-1R24M Datasheet - Page 9
SAF-C515-1R24M
Manufacturer Part Number
SAF-C515-1R24M
Description
8-Bit CMOS Microcontroller
Manufacturer
Siemens Semiconductor Group
Datasheet
1.SAF-C515-1R24M.pdf
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Table 1
Pin Definitions and Functions (cont’d)
Symbol
P1.0 - P1.7
V
V
Semiconductor Group
*) I = Input
SS
CC
O = Output
31-24
31
30
29
28
27
26
25
24
34
33, 69
(P-MQFP-80)
Pin Number
I/O*) Function
I/O
–
–
Port 1
is an 8-bit quasi-bidirectional I/O port with internal pullup
resistors. Port 1 pins that have 1's written to them are
pulled high by the internal pullup resistors, and in that
state can be used as inputs. As inputs, port 1 pins being
externally pulled low will source current ( I
characteristics) because of the internal pullup resistors.
The port is used for the low-order address byte during
program verification. Port 1 also contains the interrupt,
timer, clock, capture and compare pins that are used by
various options. The output latch corresponding to a
secondary function must be programmed to a one (1) for
that function to operate (except when used for the
compare functions). The secondary functions are
assigned to the port 1 pins as follows :
P1.0 / INT3 / CC0
P1.1 / INT4 / CC1
P1.2 / INT5 / CC2
P1.3 / INT6 / CC3
P1.4 / INT2
P1.5 / T2EX
P1.6 / CLKOUT
P1.7 / T2
Ground (0 V)
Supply voltage
during normal, idle, and power-down operation.
9
Interrupt 3 input /
compare 0 output /
capture 0 input
Interrupt 4 input /
compare 1 output /
capture 1 input
Interrupt 5 input /
compare 2 output /
capture 2 input
Interrupt 6 input /
compare 3 output /
capture 3 input
Interrupt 2 input
Timer 2 external reload /
trigger input
System clock output
Counter 2 input
IL
, in the DC
1997-08-01
C515
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